This is an indeterminate circle progress bar using pure HTML & CSS. It doesn’t use JavaScript. It uses conic-gradient to create the gradient effect. It also uses animation property to animate the progress bar.
Final output:
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Helpful links to understand the code:
Here is the Source Code:
HTML:
<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="UTF-8">
<meta http-equiv="X-UA-Compatible" content="IE=edge">
<meta name="viewport" content="width=device-width, initial-scale=1.0">
<title>Loading Bar</title>
<link rel="stylesheet" href="./styles.css">
</head>
<body>
<div class="outer-circle">
<div class="inner-circle">
</div>
</div>
</body>
</html>CSS:
* {
margin: 0;
padding: 0;
box-sizing: border-box;
}
.outer-circle {
width: 5rem;
height: 5rem;
background-color: #fff;
margin: auto;
position: absolute;
top: 0;
left: 0;
right: 0;
bottom: 0;
border-radius: 50%;
}
.inner-circle {
border-radius: inherit;
background-image: conic-gradient(#fff, rgba(80,200,120,0.3), rgb(80,200,120));
position: absolute;
z-index: -1;
margin: auto;
top: -0.8rem;
bottom: -0.8rem;
left: -0.8rem;
right: -0.8rem;
animation: circle-anim 0.6s linear infinite;
}
@keyframes circle-anim {
0% {
transform: rotate(0deg);
}
100% {
transform: rotate(360deg);
}
}